Enlarging and printing machine



1967 YOSHIRC) OKISHIMAY ETAL I ENLARGING AND PRINTING MACHINE Filed D8016, 1964 5 Sheets-Sheet 1 March 14, 1967 YOSHIRO OKISHIMA ETAL 3,308, 7

ENLARGING AND PRINTING MACHINE Filed Dec. 16, 1964 I 5 Sheets-Sheet 2FIG. 3

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ENLARGING AND PRINTING MACHINE Filed. Dec. 16, 1964 5 Sheets-$heet 20PEG. 5

March 1967 YOSHIRO OKISHIMA ETAL 3,308,717

7 ENLARGING AND PRINTING MACHINE I Filed Dec. 1 1964 5 Sheets-Sheet 4March 14, 1967 YOSHIRO OKISHIMA ETAL 7 ENLARGING AND PRINTING MACHINEFiled Dec; 16, 1964 5 Sheets-Sheet 5 FIG. 9

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I4 SC I 78] IO 1 l 4 l United States Patent 1 Claim. (a. 8824) Thisinvention relates to an enlarging and printing machine for photographingapparatus, additionally provided with a developing mechanism of a quickstabilizing type.

One object of the present invention is to provide an enlarging andprinting machinefor photography wherein cutting sensitized paper,printing and developing are automatically effected thereon by anappropriate controlled amount of exposure.

The other object of the present invention is to provide an enlarging andprinting machine capable of printing on various negative films ofdifferent sizes, for instance, Leica-size films, half-size films and 16mm. size films, which can be fed in either the same or perpendiculardirection as sensitized papers.

In accordance with the present invention, an enlarging and printingmachine is provided with an appropriate number of principal exposurebuttons for controlling main exposure time, an appropriate number ofauxiliary exposure push buttons for regulating the lighting time of anauxiliary exposure lamp to impart a flat light having not yet passedthrough films for adjusting contrast of images by a1- tering t'hegradation of sensitized papers, a main switch necessary for lighting themain exposure lamp in order to control the focussing, a starting switchfor starting the mechanism upon finishing the control of focussing, andwith switches interlocking with various mechanisms for preparation, suchas feeding the sensitized paper to a developing bath after said exposurebeing performed, simultaneously upon the beginning of operation of suchmechanism, for cutting the sensitized paper, and holding such paper atan appropriate position.

By means of gears, all the mechanisms are interlocked with a motoroperated by a starting switch. In conjunction with driving of said gearmeans, the motor is stopped by interlocking with each switch to performthe exposure. Simultaneously with completion of said exposure, the motoris rotated again for feeding sensitized paper, cutting is inpredetermined sizes and simultaneously feeding the printed sensitizedpaper to the developing bath. In addition, a mirror is arranged in sucha way that it may be reversibly turned by interlocking with the gearmechanism on an optical path for exposure of the sensitized paper. Whenthe focussing is regulated, main exposure rays of light havingpenetrated through films are reflected on a focusing screen, which arethen reversed and the printed paper is reversed during the exposure. Theexternal rays of light, that is, the rays of light passing through thefocusing screen are cut off.

From the foregoing description, the characteristic features of thepresent invention lie obviously in that a main light source lamp capableof being lit in any desired period of time by selecting switches and anauxiliary light exposure lamp imparting light to sensitized paper, whichhas not yet penetrated through negative films, are provided, and cuttercams as well as mirror cams are mounted together with an intermittentoperating gear Wheel on a driving shaft, said intermittent operatinggear wheel driving a feeding roller to feed a predetermined weight ofsensitized paper, said cutter earns being related with cuttersfor-cutting the sensitized paper in predetermined sizes, said mirrorcams reversing the mirror in an optical passage camera andsimultaneously being related with a 3,308,717 Patented Mar. 14, 1967"ice switch for an electrical source of said each driving member througha mirror driving member. Thus, according to the present invention,electric circuits and elements provided in the apparatus are controlledby the provision of all types of cams and intermittent operating memberson the driving shaft, and an automatic enlargement and printing can beeffected by simple operation of switches and all members areaccommodated in a camera. Therefore, printing can be advantageouslyeffected even in the daylight.

It is another characteristic feature of the present invention that thehead portion is arranged above the printing apparatus with a rotarycentral axial line of rotary head appropriately spaced from two lines,one is a central sensitized paper feeding line solidly intersecting atright angle with a central axial line of a projecting lens and the otheris a central line perpendicular to said sensitized paper feeding centralline, thereby assuring always in the present invention to hold constantthe longitudinal direction of various types of films such as, Leicasize, half size or 16 mm. size or other film sizes. Accordingly, in avery simple operation both enlarging and printing operations can beadvantageously accomplished in the present invention.

In the following, the present invention will be described in detail inreference to an embodiment illustrated in the accompanying drawings,though of course the present invention is not thereby limited by anymeans and can be modified within the scope and spirit of this invention,and in the drawings similar parts are represented by similar indicatingsymbols, in which FIG. 1 represents an outside front view of anenlarging and printing machine according to the present invention;

FIG. 2 is an enlarged front view of FIG. 1 with parts removed and partsin section;

FIG. 3 represents a side elevation of FIG. 2 with parts in longitudinalsection along the main exposure optical axis;

FIG. 4 represents an enlarged front View of the gear and all operationalsystems in fragments;

FIG. 5 represents an enlarged front view of a gear system and sensitizedpaperfeeding mechanism;

FIG. 6 represents an enlarged front view of the mirror reversingmechanism;

FIG. 7 represents a cross sectional plan view of the head portion ofsaid apparatus;

FIG. 8 represents a longitudinal sectional vieW on VIIIVIII line of FIG.7; and

FIG. 9 represents also a longitudinal sectional view on IXIX line ofFIG. 7.

Referring to FIG. 1 representing the outside front view of the enlargingand printing machine according to the present invention, by 1 is meant amain body; 2 a head portion; 3 a developing portion; 4 a focusingscreen; 5 a push button for controlling exposure time; 6 an auxiliarypush button for controlling exposure time; 7 a main switch; 8 a startingswitch; 9 a film carrier; and 10 a focusing ring respectively. Themachine body generally comprises: the main body 1 consisting of a camerawhich includes each operational mechanism and rolled sensitized paper;the head portion 2 shown in FIG. 3 including main exposure lamp 11 and acondenser 13; and the developing device 3 having a developing bath 72and a stabilizing b-ath 73. The front of the main body 1 includes thefocusing screen 4, a suitable number of main exposure time-controllingpush buttons 5, auxiliary exposure time controlling push buttons 6, themain switch 7 of an electric circuit for lighting the main light sourcelamp, and the starting switch 8 to start all the driving mechanisms.Between the head portion 2 and a portion of the main body 1 are providedthe film carrier 9 and a substituting lens 18 (see FIG. 2) beingsubstituted ac- 3 cording to the kinds of films, such as for instance,35 mm., 16 mm., half sizes, etc. I

As is shown in FIG. 3 the head portion 2 is provided with the main lightsource lamp 11, reflecting mirror 12, condensers 13 and 13' and thereflecting mirror 14. Below the main light source lamp 11, a cooling fan16 is mounted to be driven by means of a fanmotor 15 in the main body 1;the cooling fan begins to revolve simuL taneously upon the main switch 7being turned on and continues to run until such switch is turned off.The head portion 2 is adapted to turn horizontally on the main body 1and a click stop 17 is provided at the root 2' of the head portion 2 tolatch the head portion 2 to the main body 1. Substituting lens 18 isattached to the upper portion of main body 1 and is adjusted by thefocusing ring 10 relative to the film carrier 9 which is disposedbetween the substituting lens and the under surface of condenser 13'.The reflecting mirror 14 is appropriately placed in the head portion 2so that the optical axis of substituting lens 18 coincides with theoptical axis of the condenser 13 for the main light source lamp 11. Anauxiliary exposure light lamp 19 is mounted in the main body 1 on theside of lens 18 and is controlled by an auxiliary exposuretime-controlling push-button 6.

The main body 1 comprises mainly an optical passage camera 20 and acharging camera 22 for rolled sensitized paper A, which can be openedand closed with a cover 21 and a mechanism chamber 23. A reversingmirror 24 is provided on the optical axial line for the optical passagecamera as illustrated in FIG. 3, while on the bottom of the opticalpassage camera, rollers for feeding sensitized papers are oppositelydisposed. The root of the reversing mirror is secured to a mirror axis27 pivotally held on both side plates of optic-a1 passage camera 20, andin general the focus-control is adapted to be effected by reflectinglight from the main light source on the focusing screen 4, and adaptedto prevent light from entering by reversing and closely adhering to theclosing plate 28, when exposure is effected on the sensitized paper.

As is illustrated in FIGS. 2 and 3, a driving motor 30 is mounted on apartition 29 in the mechanism chamber 23, and a starting electriccircuit is closed by the starting switch 8 to effect driving. Asillustrated in FIG. 4, the motor shaft 31 is interlocked with the mainshaft 32 by a' gear device 33, and the main driving shaft passes throughthe partition 29, and is held pivotally by the wall 34 opposite to suchpartition 29. A driving shaft 35, as shown in FIGS. 4 to 6, has a gearwheel 37 in mesh with a pinion 36 secured on said main shaft 32 isprovided, a switch cam 39 for actuating a microswitch 38 in the circuitfor revolving the driving motor 30, a mirror cam 40 for reversing thereversing mirror 24, a cutter cam 41 for driving a cutting device forthe sensitized papers, an intermittent gear wheel 44 in mesh with a gearwheel 43 secured on an intermittent revolving shaft 42 to drive feedingrollers for sensitized paper and intermittently drive said gear wheel,and a braking cam 45 for breaking the inertia in the intermittentrevolution.

The mirror cam 40 is interlocked with a pin 47 projected at an end of amirror lever 46 which is journalled in on the wall 34 by a pin 48,whereby the mirror lever 46 is imparted with a lever motion by therotation of said mirror cam. On the other end of mirror lever 46, a pin49 protrudes to actuate the reversing mirror 24 by pushing a pin 51 of amirror crank 50 fixed on the mirror spindle 27. The mirror lever 46 ispressed by the mirror cam 40 to rotate to a predetermined position, whenthe driving motor 30 is stopped to come in contact with a microswitch 52for actuating an electric controlling circuit to consecutively light andextinguish the auxiliary light-exposure lamp 19 and main light sourcelamp 11. Furthermore, the reversing mirror 24 is adapted also to beconnected with another microswitch 53, when the optical passage leadingto the surface of sensitized paper is shut off.

The cutter cam 41 pushes a pin 54 of the cutting mechanism through therotation of driving shaft 35, to move an upper cutting edge 55 downwardsby lever 56, thereby the sensitized paper being cut in predeterminedsizes between the upper and lower edges 55 and 57 of the cutter. V

The intermittent rotary shaft 42 is revolved by the gear wheel 43 inmesh with the intermittent gear wheel 44 on the driving shaft 35. Thatis, the intermittent gear wheel 44 shown in FIG. 5 is formed withthreaded portions 44a and 44!) as Well as unthreaded recessed portions44c and 44d. On such recessed portions, the meshing with the gear wheel43 is disengaged, so that the braking cam 45 may come in contact with abraking portion 53 provided on one surface of the gear wheel 43 to haltrotation of the intermittent rotary shaft 42. The rotary shaft 42 drivesfeeding roller shafts 60 and 61 through chain wheel 59 or the like. Thefeeding roller shaft 66) carries with the feeding rollers 25, forfeeding the sensitized paper by pressing both sides of proceedingsensitized paper in cooperation with the roller 26. The feeding roller25 is arranged near the passage of sensitized paper, which passageincludes sensitized paper guiding plates 62 and 63. On the other feedingroller shaft 61, another feeding roller 64 is provided acting as afeeding roller to feed the sensitized paper through the passage for thesensitized paper in cooperation with pushing roller 65 which is carriedby lever 56 to contact with the feeding roller.

The main shaft 32 revolves a shaft 67 for driving a developer through achain wheel 66, or the like, as shown in FIG. 5, while in the developerportion 3 shown in FIG, 2, a developing bath 72 and a stabilizing bath73 are provided, wherein feeding rollers 68 and 69 as well as a furtherroller 70 are revolved in response to rotation of the driving shaft bygear wheel 71. The sensitized paper having finished exposure forprinting, are impregnated in a developing bath and a stabilizing bath 73and dewatered by the dewatering roller 70 to be delivered outside. awindow 74 is formed in front of the optical passage camera 20 and aphotoelectric cell 75 receiving reflected beam of light from thesensitized paper is arranged further in front of the cell 75. Thephotoelectronic tube actuates an electric circuit to light the mainlight source lamp 11, in order to give the sensitized paperautomatically the fixed value of exposure decided by the main exposuretime controlling push button 5.

The main exposure time (the main light source lamp being lit) and theauxiliary light expsoure time (the auxiliary light exposure lamp beinglit) according to the main exposure time controlling push button 5 andauxiliary exposure time controlling push button 6 may be selected, forinstance, as in the following table.

(1) Main exposure light:

Push button, No

Exposure time rate By selecting an appropriate button each time, thefilmexposure values may be regulated, for instance, reversed light,etc., the ratio of black and white areas deviated.

(2) Auxiliary exposure light:

Push button No 1 2 3 4 5 Auxiliary exposure rate (percent) 60 45 3O 15 0In order to decide the exposing time,

exposure box 20 and the exchangeable lens 18 is affixed to the main body1 depending on the kind of negative films, for instance, 35 mm.-size,half-size, 16 mm.-

size, etc., which is then placed between the sensitized paper carriers.When the main switch 7 is adjusted to on'-position, the main lightsource lamp 11 will be lit, and the light having passed through films isreversed by the reversing mirror 24, and the image is reflected on thefocusing screen 4, while the fan motor 15 is revolved to cool the l'ghtsource, and the magnitude of exposure of films (ratio of black and whiteareas) can be set by controlling focusing through the rotation of focuscontrolling ring of the exchangeabe lens 18. The film exposure value maybe regulated by select'ng any suitable main light exposure controllingpush button 5 referred to before, and the gradation of printing papermay be adjusted by selecting and pushing any suitable auxiliary exposuretime-controlling push button 6.

The focus is controlled and the starting switch 8 is brought toon-position by pushing both push buttons, whereupon the driving motor 30is revolved and the driving shaft 35 is revolved through main revolvingshaft 32. In consequence, each constructional member on the drivingshaft 35 is revolved, First, the switch cam 39 leaves the microswitch 38that is moved to on-position. Even if the starting switch 8 reacheson-position, the driving motor 30' will continue revolution, and forthis reason, the mirror lever 46 is revolved in the direction of arrowby the mirror cam 40 as illustrated in FIG. 6, while the reversingmirror 24 is revolved counterclockwise by a mirror crank 50, and themirror shaft 27 as illustrated in FIG. 3, leaves a contact point of amicroswitch 53 to extinguish the main light source lamp 11, then closelyadhering to the closing plate 28 and preventing external light fromentering in the camera 20. Simultaneous therewith, the mirror lever 46pushes against the contact point of microswitch 52, and halts therevolution of driving motor 30 to make the electric circuit forcontrolling of exposure, in order to light the auxiliary exposure lamp19 for the time fixed by the auxiliary exposure time controlling pushbutton 6, and the main light source lamp 11 is lit for the time fixed bythe main exposure light controlling push button 5 upon said auxiliarylight exposure lamp being extinguished.

When the main light source lamp 11 is extinguished, a relay (not shownin the drawing) will work and the driving motor 30 begins to revolve,independently of each said switch. Accordingly, each roller, 68, 69 and70 will revolve in the developer device. Upon the driving motor 30 beingrevolved, as the driving shaft 35 revolves, the mirror lever 46 isrevolved counterclockwise by the mirror cam 40 as shown in FIG. 6, andas the reversing mirror is revolved clockwise as in FIG. 3, the mirrorlever 46 leaves the microswitch 52. In this case, the return movement ofreversing mirror 24 revolves the microswitch 53 as soon as such returnmotion is finished, to light the main light source lamp 11; the gearwheel 43 secured to the intermittent driving shaft 42 revolves for afixed period of time because the intermittent gear wheel 44 revolvesalso with such driving shaft. In consequence, as feeding rollers 60 and61 revolve through a chain gear wheel 59, with the revolution of theintermittent driving shaft 42, the sensitized paper A is fed in thedirection of arrow in FIG. 2. The sensitized paper, having already beenprinted or exposed, is impregnated in the developing bath by means of afeeding roller 68 of a developing bath 72, and further impregnated in astabilizing bath 73 by means of a feeding roller 69, and deliveredoutwardly after water being squeezed off by the squeezing rollers 70.The sensitized paper having been pulled out, by the feeding roller 61,of rolled sensitized paper, is guided with guiding boards 62 and 63, andreaches to the under surface of the optical passage camera 29. However,when the sensitized paper is fed in a fixed length, the gear Wheelportion 44a of the intermittent wheel 44 comes to an end, and a recessportion 440 appears. For this reason, the intermittent driving shaft 42is stopped, and the braking cam 45 approaches near the broken portion 58on one face of gear wheel 43 and the revolution due to inertia thereofis also stopped.

A pin 54 is pushedby the cutter cam 41 in order to descend an upper edge55 of the cutter through a lever 56 for cutting printing paper betweenthe upper cutter edge 55 and a lower edge 57. When the cutter cam passesthereby, the upper edge of cutter 55 is returned upwards by a returningspring (not illustrated in the drawings). Upon completing the cuttingstage, the intermittent gear wheel 44 again comes in mesh with the gearwheel 43 of the intermittent driving shaft 42 on its gear wheel portion44b, while the braking cam 54 releases the gear wheel 43 from braking.In consequence, the intermittent driving shaft 42 is revolved to feedthe printing paper slightly and when the cut printing paper c-ames tothe right position on the bottom surface of the optical passage camera20, the recess 44d of said intermittent gear wheel approaches near thegear wheel 43 of the intermittent driving shaft 42 which is stopped. Thedriving shaft 35 revolves slightly, even after the cut printing paper isbrought to the right portion on the bottom surface of the opticalpassage camera 20. The contact point of microswitch 38 is pushed by theswitch cam 39 on the driving shaft and the driving motor 30 is stoppedand the main light source lamp 11 is extinguished. The whole printingoperation is finished and the fan motor 15 is stopped upon the mainswitch 7 being set on off-position.

The intermittent gear wheel 44 is formed with the one gear wheel portion44a engraved for feeding the printed printing paper as described beforeas well as with the other wheel portion 44b for shifting somewhat thecut sensitized paper, and the other portions form the recessed portions440 and 44d. The braking cam 45 is projected correspondingly on therecessed portion, and the electric circuit for driving the driving motor30 and related to all the switches, 38, 52 and 53 is consisted of thecircuit comprising a time-limit relay, electron tube, etc. In this case,the explanation is omitted as it is not needed particularly.

A further embodiment of the present invention shown in FIGS. 7 through 9includes a feeding mechanism for sensitized papers and an automaticsensitized controlling mechanism or the like, characterized by the factthat the main light source lamp 11 and condenser 13' are provided on themain body 1, wherein projecting lens 18 is detachably and substitutablyprovided on the main body 1 according to the kind of negative filmsused, whereby the central rotary shaft aa of rotary head 76 is arrangedwith appropriate space from two lines, the one being central line 0feeding sensitized paper, perpendicular to the central shaft bb of theprojecting and substituting lens and the other central line atintersecting at right angle therewith.

Moreover, the central axial line aa of the branch leg 77 of the rotaryhead 76 to be secured to the main body 1 is arranged as shown in FIG. 8,appropriately spaced from the central line 0 for feeding the sensitizedpaper which intersects with the central axial line bb (see FIG. 9) ofthe projecting and substituting lens 18 on one hand and on the centralline d perpendicular to said central axial line 12-1). The head 76rotatably fixed to the fixing seat 78 of main body 1 through the clickstop 17 and slide 79. Moreover, an optical axis of the main light sourcelamp 11 proceeds in the same direction as said central line d as shownin FIG. 7 of on the condenser 13', then proceeds downwards at rightangle -by means of reflecting mirror 14, which coincides with theoptical axis of the lens, i.e., the central axial line bb for thephotographing lens. The photographing substituting lens 18 revolves therotary head 76 in the direction of arrow X, to ensure the drawing of themain body 1 upwards by changing the position of the rotary head andsubstitute an appropriate lens according to the kind of films used,while the sensitized paper is adapted to be fed automatically in thedirection of arrow Y near the bottom of main body 1.

Thus, in the case of sensitized devices, in which the direction offeeding sensitized papers is designed to print Leica-size films, whenhalf-size film N is intended to be printed by feeding same in theabove-mentioned direction, the longitudinal direction of the picturecomes to a position perpendicular to the longitudinal direction of theprevious Leica-size film M, rendering it impossible to obtain printedpictures (for instance, of carte devisite films, name card size films,etc.), and as a result, in half size films, it is always possible thatonly half Leica size pictures become obtainable.

Nevertheless, according to the present embodiment, as described before,as the center of revolution of rotary head 76 is shifted to the opticalaxis of projecting and substituting lens 18, the negative film carrier 9is appropriately fixed to the two perpendicularly intersectingpositions, whereby films are fed along either direction of X-axis orZ-axis. In consequence, the position of all types of films, such as ofLeica size, half size or 16 mm. size can be always fixed along thelongitudinal direction of pictures.

What is claimed is:

An enlarging and printing machine for photographing apparatus comprisinga main light source,

a plurality of main time exposure switches controlling energization ofsaid main light source,

a reflecting mirror disposed on one side of said main light source,

lens means disposed on another side of said main light source forprojecting light rays from said reflecting mirror,

camera means including a focusing lens receiving the projected lightrays from said lens means,

a film carrier between said lens means and said focusing lens whereby afilm image is projected to said focusing lens,

a supply of sensitized paper adapted for intermittent feeding under saidfocusing lens whereby a projected film image is directed onto a portionof said paper,

drive means including an intermittent gear for intermittently advancingsaid paper and including cutting means for cutting the said portion ofpaper,

developer means receiving the said portion of paper to develop the imagethereon,

transfer means operated by said drive means for transferring the saidportion of paper to said developer means,

an auxiliary light source operatively disposed adjacent said focusinglens and imparting non-image forming light onto the sensitized paper toenhance contrast of the film image projected thereon,

a plurality of auxiliary time exposure switches controlling energizationof said auxiliary light source,

intercepting mirror means movable in an out of the path of the imagebeing projected onto said portion of paper whereby said main andauxiliary time exposure switches may be selectively actuated to controlthe contrast, and

cam means on said drive means engageable with said intercepting mirrormeans to effect movement thereof.

References Cited by the Examiner UNITED STATES PATENTS 6/1963 Baasner8824 2/1965 Adler 8824

